Have you considered using the 75mm and the Extra Tele Converter function? Just another option. I don't have the 75 mm; I thought I would never use this but ended up using it more often than I thought for my wider primes. Would give you some extra flexibility.

No I have not looked at that option (will check it out thanks). I have all but decided, until I change my mind , to go for the 35-100.